A 40-year-old man has been on primary therapy for active pulmonary tuberculosis

A 40-year-old man has been on primary therapy for active pulmonary tuberculosis for the past 2 months. At his regular clinic visit, he complains of a pins and needles sensation in his feet. You suspect that he might be deficient in which one of the following vitamins?

A. Ascorbic acid.

B. Niacin.

C. Pyridoxine.

D. Calcitriol.

E. Folic acid.

 
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